527778973 has 2 divisors, whose sum is σ = 527778974. Its totient is φ = 527778972.

The previous prime is 527778959. The next prime is 527778983. The reversal of 527778973 is 379877725.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 300432889 + 227346084 = 17333^2 + 15078^2 .

It is a cyclic number.

It is not a de Polignac number, because 527778973 - 2²⁵ = 494224541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (527778983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263889486 + 263889487.

It is an arithmetic number, because the mean of its divisors is an integer number (263889487).

Almost surely, 2^527778973 is an apocalyptic number.

It is an amenable number.

527778973 is a deficient number, since it is larger than the sum of its proper divisors (1).

527778973 is an equidigital number, since it uses as much as digits as its factorization.

527778973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5186160, while the sum is 55.

The square root of 527778973 is about 22973.4405999624. The cubic root of 527778973 is about 808.1352076819.

The spelling of 527778973 in words is "five hundred twenty-seven million, seven hundred seventy-eight thousand, nine hundred seventy-three".